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90417-69-9

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90417-69-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 90417-69-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,4,1 and 7 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 90417-69:
(7*9)+(6*0)+(5*4)+(4*1)+(3*7)+(2*6)+(1*9)=129
129 % 10 = 9
So 90417-69-9 is a valid CAS Registry Number.

90417-69-9Relevant articles and documents

One-pot dichlorinative deamidation of primary β-ketoamides

Zheng, Congke,Zhang, Xiaohui,Ijaz Hussain, Muhammad,Huang, Mingming,Liu, Qing,Xiong, Yan,Zhu, Xiangming

, p. 574 - 577 (2017/01/16)

An approach to the dichlorinative deamidation of primary β-ketoamides through ketonic cleavage is described, and a series of α,α-dichloroketones were furnished mostly in the presence of TEMPO. Based on control experiments, a mechanism involving tandem dichlorination and deamidation is proposed to interpret the observed reactivity.

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